Jonsered GC 2125, Operator'S Manual

Page: 22 / 32

22 –
English
MAINTENANCE
Cooling system
To keep the working temperature as low as possible the
machine is equipped with a cooling system.
The cooling system consists of:
1 Air intake on the starter.
2 Fins on the fl ywheel.
3 Cooling fi ns on the cylinder.
4 Cylinder cover (directs cold air over the cylinder).
Clean the cooling system with a brush once a week, more
often in demanding conditions. A dirty or blocked cooling
system results in the machine overheating which causes
damage to the piston and cylinder.
Bevel gear
The bevel gear is fi lled with the right amount of grease at the
factory. However, before using the machine you should check
that the bevel gear is
fi lled 3/4 full with grease. Use
JONSERED special grease.
The grease in the bevel gear does not normally need to be
changed except if repairs are carried out.
Air fi lter
The air fi lter must be regularly cleaned to remove dust and dirt
in order to avoid:
• Carburettor malfunctions
• Starting problems
• Loss of engine power
• Unnecessary wear to engine parts
• Excessive fuel consumption.
Clean the fi lter every 25 hours, or more regularly if conditions
are exceptionally dusty.
Cleaning the air fi lter
Remove the air fi lter cover and take out the fi lter. Wash it
clean in warm, soapy water. Ensure that the fi lter is dry before
re fi tting it.
An air fi lter that has been in use for a long time cannot be
cleaned completely. The fi lter must therefore be replaced with
a new one at regular intervals. A damaged air fi lter must
always be replaced.
If the machine is used in dusty conditions the air fi lter should
be soaked in oil. See instructions under the heading Oiling the
air
fi lter.
Oiling the air fi lter
Always use special fi lter oil. Filter oil contains a solvent to
make it spread evenly through the fi lter. You should therefore
avoid skin contact.
Put the fi lter in a plastic bag and pour the fi lter oil over it.
Knead the plastic bag to distribute the oil. Squeeze the
excess oil out of the
fi lter inside the plastic bag and pour off
the excess before fi tting the fi lter to the machine. Never use
common engine oil. This would drain through the fi lter quite
quickly and collect in the bottom.
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